NTPD frequency error

From: Gerard E. Seibert <jerry_at_seibercom.net>
Date: Sat, 05 Aug 2023 17:33:09 UTC
I just updated my system to FreeBSD 13.2-RELEASE-p2 GENERIC amd64. I
then ran poudriere to update all the ports on my system.

This is the startup message from ntpd:

Aug  5 12:45:50 mystic ntpd[71870]: ntpd 4.2.8p15-a (1): Starting
Aug  5 12:45:50 mystic ntpd[71870]: Command line: /usr/sbin/ntpd -p /var/db/ntp/ntpd.pid -c /etc/ntp.conf -f /var/db/ntp/ntpd.drift -g
Aug  5 12:45:50 mystic ntpd[71870]: ----------------------------------------------------
Aug  5 12:45:50 mystic ntpd[71870]: ntp-4 is maintained by Network Time Foundation,
Aug  5 12:45:50 mystic ntpd[71870]: Inc. (NTF), a non-profit 501(c)(3) public-benefit
Aug  5 12:45:50 mystic ntpd[71870]: corporation.  Support and training for ntp-4 are
Aug  5 12:45:50 mystic ntpd[71870]: available at https://www.nwtime.org/support
Aug  5 12:45:50 mystic ntpd[71870]: ----------------------------------------------------
Aug  5 12:45:50 mystic ntpd[71871]: leapsecond file ('/var/db/ntpd.leap-seconds.list'): good hash signature
Aug  5 12:45:50 mystic ntpd[71871]: leapsecond file ('/var/db/ntpd.leap-seconds.list'): loaded, expire=2023-12-28T00:00:00Z last=2017-01-01T00:00:00Z ofs=37

A short time later, I start to receive these error messages:

Aug  5 12:55:01 mystic ntpd[71871]: frequency error 579 PPM exceeds tolerance 500 PPM
Aug  5 12:58:14 mystic ntpd[71871]: frequency error 555 PPM exceeds tolerance 500 PPM
Aug  5 13:01:47 mystic ntpd[71871]: frequency error 558 PPM exceeds tolerance 500 PPM
Aug  5 13:09:40 mystic ntpd[71871]: frequency error 624 PPM exceeds tolerance 500 PPM

I have tried shutting down ntpd, resetting the time and restarting
ntpd. After a few minutes, the problem starts again. This was not
happening before the upgrade.

-- 
Jerry